Crestron electronic QM-MD4X2 User manual

Brand: Crestron electronic

Model: QM-MD4X2

Type: User manual

This manual is also suitable for

Marine Sanitation System QM-MD4X2

Crestron QM-MD4x2

QuickMedia Distribution Center

Operations Guide

This document was prepared and written by the Technical Documentation department at:

Crestron Electronics, Inc.

15 Volvo Drive

Rockleigh, NJ 07647

1-888-CRESTRON

All brand names, product names and trademarks are the property of their respective owners.

Crestron QM-MD4x2 QuickMedia Distribution System

Contents

QuickMedia Distribution System: QM-MD4x2 1

Introduction ...............................................................................................................................1

Features and Functions................................................................................................ 1

Applications.................................................................................................................2

Specifications ..............................................................................................................4

Physical Description....................................................................................................4

Industry Compliance ................................................................................................... 9

Setup .......................................................................................................................................... 9

Network Wiring........................................................................................................... 9

QuickMedia Wiring................................................................................................... 10

Identity Code ............................................................................................................. 12

Rack Mounting .......................................................................................................... 15

Stacking..................................................................................................................... 16

Hardware Hookup .....................................................................................................16

Programming Software............................................................................................................17

Earliest Version Software Requirements for the PC ................................................. 18

Programming with SIMPL Windows ........................................................................ 18

Programming with VisionTools™ Pro-e...................................................................22

Creating Labels with Crestron Engraver ...................................................................22

Uploading and Upgrading........................................................................................................ 23

Communication Settings ...........................................................................................23

Uploading a SIMPL Windows Program.................................................................... 25

Firmware Upgrade..................................................................................................... 26

Operation .................................................................................................................................28

Operating Modes .......................................................................................................28

Viewing Signal Routes in the System Mode .............................................................28

Switching Signals in the Local Mode........................................................................28

Problem Solving ......................................................................................................................30

Troubleshooting......................................................................................................... 30

Further Inquiries ........................................................................................................30

Future Updates ..........................................................................................................31

Appendix: Serial Protocol.......................................................................................................32

Front Panel Functions................................................................................................ 32

Verbose Mode Functions........................................................................................... 32

Switching/Routing Functions ....................................................................................33

Return and Warranty Policies .................................................................................................. 35

Merchandise Returns / Repair Service ...................................................................... 35

CRESTRON Limited Warranty.................................................................................35

Operations Guide - DOC. 6278 Contents • i

Crestron QM-MD4x2 QuickMedia Distribution System

QuickMedia Distribution System:

QM-MD4x2

Introduction

Features and Functions

The Crestron

QuickMedia Distribution System, QM-MD4x2 (hereinafter referred to

as MD4x2) is part of the Crestron MediaManager™ line of network devices, room

control systems, and signal routing solutions.

Functional Summary

• Four input by two output matrix switching of composite video,

S-video, RGB, and audio signals

• Switching scheme allows one QuickMedia (also known as QM) input

to be switched to one, or both of the available QM outputs

• Separate switching of audio and video portions of QM input signals

• Four QuickMedia inputs (RJ-45) for connection to QM wall plates

and/or QM FlipTop media centers

• Two QM outputs (RJ-45) for connection to QM receivers

• Cresnet connector for each QM port simplifies the use of QM cables

• Dedicated power connections allow for sufficient power distribution

among connected components

• Switching operations can be performed through a Crestron control

system or the QM-MD4x2’s front panel

• Custom-labeled front panel buttons provide local control of switching

functions

• Expandable switching capabilities by cascading with other MD devices

• Touch-settable ID (TSID) ready

The MD4x2 is a QuickMedia™ (also known as QM) signal routing device used for

the switching and routing of multiple QM signals within a QM system. The audio

and video portion of each QM input signal can be separately switched to either of

two QM output ports. The presence of an MD4x2 in a system does not improve or

degrade QM signal quality, nor does it increase or decrease the length of QM cable

that can be used in a cable run. An MD4x2 can be cascaded with a second MD4x2 or

other QM-MD switching device to provide additional switching capacity.

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 1

QuickMedia Distribution System Crestron QM-MD4x2

Applications

The MD4x2 is part of the Crestron MediaManager line of integrated presentation

solutions. It is ideally suited to work with Crestron’s MediaManager wall plate

media centers, FlipTop media centers, receivers and control processors to allow

quick switching of multiple A/V sources in a presentation system. MediaManager

devices are designed for conference room, auditorium, and lecture hall applications,

or anywhere else audio, video, or computer equipment needs to be easily connected

and disconnected from a presentation system or room control system.

The following diagram shows an MD4x2 in a lecture hall application.

QM-MD4x2 in a Lecture Hall Application

For more information on this and other QM applications, refer to the latest revision

of the Crestron MediaManager Control, Switching and Management Applications

Guide (Doc. 6244) which can be downloaded from the Downloads | Product Manuals

section of the Crestron website (www.crestron.com

The following diagram represents the switching abilities of the MD4x2. The MD4x2

can be operated locally (local mode) using buttons on the front panel, or remotely

from a control system (system mode). For more information, refer to “Operating

Modes” on page 28.

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Crestron QM-MD4x2 QuickMedia Distribution System

Functional Diagram of the QM-MD4x2

VIDEO

4 X 2 X 5

MUX

DIGITAL

AUDIO

4 X 2 X 1

MUX

Front End

DA1

VID 1

VID 2

VID 3

VID 4

DA1

DA2

DA3

DA4

QM Line

Out 1

QM Line

Out 2

OUT 1

OUT 2

5-Layer Crosspoint

1-Layer Crosspoint

Cresnet

Control

IN 1

IN 2

IN 3

IN 4

DA2

DA3

DA4

An MD4x2 can be cascaded with a second MD4x2 or other QM-MD switching

device to provide switching of up to 16 QM inputs as shown in the following block

diagram.

Multiple QM-MD4x2s Cascaded to One QM-MD4x2

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QuickMedia Distribution System Crestron QM-MD4x2

Specifications

Specifications for the QM-MD4x2 are listed in the following table.

QM-MD4x2 Specifications

SPECIFICATION DETAILS

Power Requirements 11 Watts (0.46 Amp @ 24 VDC)

Default Net ID 07

Control System Update Files

2-Series Control System

1, 2

Version C2-V3.093.CUZ or later

Input Channels 4 QuickMedia channels over RJ-45

Output Channels 2 QuickMedia channels over RJ-45

QuickMedia Performance

Gain

Nominal input impedance

Nominal output impedance

Differential input impedance

Differential output impedance

0 dB

100 Ohms

50 Ohms common

QM-MD4x2 Firmware QM-MD4x2.v4.10.upg or later

Rack Space 1U high

Operating Temperature and Humidity 41º to 104º F (5º to 40º C),

10 to 90% Relative Humidity (non-condensing)

Dimensions and Weight Height: 1.70 in (4.32 cm) without mounting feet

Width: 17.03 in (43.24 cm) without mounting ears

Depth: 6.64 in (16.35 cm)

Weight: 3.0 lbs (1.4 kg)

1. The latest software versions can be obtained from the Downloads | Software Updates section of the

Crestron website (www.crestron.com). Refer to the NOTE following these footnotes.

2. Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product

Catalog for a complete list of 2-Series control systems.

NOTE: Crestron software and any files on the website are for Authorized Crestron

dealers and Crestron Authorized Independent Programmers (CAIP) only. New users

may be required to register to obtain access to certain areas of the site (including the

FTP site).

Physical Description

The MD4x2 is housed in a black enclosure with labeling on the front and rear panels.

Twelve buttons with accompanying light emitting diodes (LEDs) on the front panel

are used for local control of source and destination signal switching. The source and

destination selection buttons can be custom-labeled with Crestron Engraver software

and 100-pound paper. Two LEDs on the front panel indicate power and network

activity. All QM, Cresnet

, and power connections are made to the back of the unit.

A pushbutton on the rear panel with an accompanying LED is used to set the

MD4x2’s network ID. Refer to the following illustrations of the front and rear panels

and the physical views.

Two mounting ears are provided for rack mounting, and four square rubber feet are

supplied for stability and to prevent slippage in tabletop placement or stacking

configurations.

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Crestron QM-MD4x2 QuickMedia Distribution System

QM-MD4x2 Physical View (Front)

QM-MD4x2 Physical View (Rear)

QM-MD4x2 Physical Views

17.03 in

(43.24 cm)

16.92 in

(42.98 cm)

Z24 Y G Y24

OUT

YGZ24ZG

GZY

24 GZY

YZG

1.70 in

(4.32 cm)

6.64 in

(16.86 cm)

6.44 in

(16.35 cm)

Ports

All connections to the MD4x2 are made through the ports on the rear panel. Refer to

the illustrations and descriptions that follow.

NOTE: Interface connectors for the NET and power ports are provided with the

MD4x2.

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 5

QuickMedia Distribution System Crestron QM-MD4x2

QM IN

G24 Y Z

The MD4x2 contains four QM ports for connecting QM sources. Each QM port has

an RJ-45 connector for QM signals and a corresponding 4-position mini-terminal

block connector for Cresnet control signals.

For wiring information, refer to “QuickMedia Wiring” on page 10 and “Network

Wiring” on page 9.

The 4-position mini-terminal block connector on each QM IN port receives 24 VDC

power from a 2-position terminal block connector for proper power distribution to the

attached QM devices. For information on connecting 24 VDC power to the QM IN

ports, refer to “Hardware Hookup” on page 16.

RJ-45 Pin Assignments

PIN WIRE COLORS

(568B)

ASSIGNMENT:

RGB

QM ASSIGNMENT:

COMPOSITE,

S-VIDEO AND AUDIO

1 WHITE/ORANGE - RGB Red - CHROMINANCE

2 ORANGE + RGB Red + CHROMINANCE

3 WHITE/GREEN - RGB Green - LUMINANCE

4 BLUE + Digital Audio + AUDIO

5 WHITE/BLUE - Digital Audio - AUDIO

6 GREEN + RGB Green + LUMINANCE

7 WHITE/BROWN - RGB Blue - COMPOSITE

8 BROWN + RGB Blue + COMPOSITE

NOTE: When transmitting S-video, luminance uses the green video pathway, and

chrominance uses the red video pathway. When transmitting composite video, the

signal is carried on the blue video pathway.

NOTE: Use Crescat-QM, or good quality CAT5E / CAT6 cable to make QM

connections. The cumulative skew over the entire length must be less than 15 ns.

Refer to “QuickMedia Wiring” on page 10 for cable specifications.

NOTE: When using Crescat-QM wiring, four additional wires are included for

making Cresnet connections. Refer to “QuickMedia Wiring” on page 10 for cable

specifications.

QM OUT

G24 Y Z

The MD4x2 contains two QM ports for connecting QM receivers or any other device

with a QM input. Each QM port has an RJ-45 connector for QM signals and a

corresponding 4-position mini-terminal block connector for Cresnet control signals.

For wiring information, refer to “QuickMedia Wiring” on page 10 and “Network

Wiring” on page 9.

The QM pin assignments for the QM OUT ports are the same as the QM IN ports

described previously.

The 4-position mini-terminal block connector on each QM OUT port receives 24

VDC power from a 2-position terminal block connector for proper power distribution

to the attached QM devices. For information on connecting 24 VDC power to the

QM port groups, refer to “Hardware Hookup” on page 16.

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Crestron QM-MD4x2 QuickMedia Distribution System

QM POWER

G24

The MD4x2 contains two 2-position terminal block connectors that provide 24VDC

power to the Cresnet ports on each of the QM ports. Power to the QM power ports

can be supplied by the Crestron C2N-SPWS300 External 300 Watt Power Supply or

the Crestron CN-PWS75 External 75 Watt Power Supply. For more information,

refer to “Hardware Hookup” on page 16.

NET

24 GZ

This 4-position terminal block connector is used to connect the MD4x2 to the

Cresnet system. Data and power for the MD4x2 are provided via the connection.

Refer to “Network Wiring” on page 9.

Indicators & Pushbuttons

The MD4x2s indicators and pushbuttons are described in the following paragraphs.

PWR (Power)

This LED, located on the front panel, illuminates when 24 VDC is supplied to the

MD4x2 via the NET port.

NET

This LED, located on the front panel, illuminates when communication between the

control system and the MD4x2 is established (the unit is polled on the network).

Illumination indicates that the SIMPL Windows program currently loaded has a

network device defined at the same Net ID as the MD4x2. The LED flashes when

communication with the processor occurs.

AUDIO BREAK

When operating in the local mode, press this button to enable separate switching of a

QM signal’s audio and video portions. Push again to disable this feature and enable

simultaneous switching. When the accompanying LED is illuminated, a QM signal’s

audio and video portions can be switched separately. When the LED is not

illuminated, the QM signals audio and video portions are switched simultaneously.

For more information on the MD4x2’s operating modes, refer to “Operating Modes”

on page 28.

Press this button to switch the audio portion of QM signals when operating in the

local mode. When the accompanying LED is illuminated, only the audio portion of a

QM signal will be switched. Audio can be switched separately from video only when

the AUDIO BREAK LED is illuminated.

While in the system mode, pressing A will indicate where the audio portion of a

signal is routed. For more information on the MD4x2’s operating modes, refer to

“Operating Modes” on page 28.

Press this button to switch the video portion of a QM signal when in the local mode.

When the accompanying LED is illuminated, only the video portion of a QM signal

will be switched. Video can be switched separately from audio only when the

AUDIO BREAK LED is illuminated.

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 7

QuickMedia Distribution System Crestron QM-MD4x2

While in the system mode, pressing V will indicate where the video portion of a

signal is routed. For more information on the MD4x2’s operating modes, refer to

“Operating Modes” on page 28.

SYS (System)

Press this button to set the MD4x2 to the system mode. When the accompanying

LED is illuminated, all switching functions are controlled by the Crestron control

system. While in the system mode, routing paths for each input can be viewed on the

front panel by pressing an input or output button. For more information on the

MD4x2’s operating modes, refer to “Operating Modes” on page 28.

LOCAL

Press this button to set the MD4x2 to the local mode. When the accompanying LED

is illuminated, all switching functions are controlled by MD4x2’s front panel. For

more information on the MD4x2’s operating modes, refer to “Operating Modes” on

page 28.

ENTER

When switching signals in the local mode, switch changes are not implemented until

the ENTER button is pressed. After selecting an input source and an output

destination, press ENTER to implement the change.

IN (1 through 4)

Select a QM input source to view or switch (depending on the selected operating

mode) by pressing the corresponding IN button. If audio break is enabled (indicated

by the AUDIO BREAK LED), only the audio or video portion (indicated by the A or

V LED) will be switched or viewed (depending on the selected mode). For

information on operating modes and selecting QM input sources, refer to “Operation”

on page 28.

OUT (1 & 2)

Select a QM output destination to view or switch (depending on the selected

operating mode) by pressing the corresponding OUT button. If audio break is

enabled (indicated by the AUDIO BREAK LED), only the audio or video portion

(indicated by the A or V LED) will be switched or viewed (depending on the selected

mode). For information on operating modes and selecting QM output destinations,

refer to “Operation” on page 28.

SETUP LED and Pushbutton

The MD4x2 is TSID ready. Located on the rear of the MD4x2, the SETUP

pushbutton and its associated LED are located on the rear panel and are used for

setting up the unit’s network ID during the initial configuration of a Cresnet system

or when the device is being added/replaced. Refer to “Method B (Touch Settable

ID)” on page 13 for detailed information.

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Crestron QM-MD4x2 QuickMedia Distribution System

Industry Compliance

As of the date of manufacture, the MD4x2 has been tested and found to comply with

specifications for CE marking and standards per EMC and Radiocommunications

Compliance Labelling (N11785).

NOTE: This device complies with part 15 of the FCC rules. Operation is subject to

the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may

cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a residential

installation. This equipment generates, uses and can radiate radio frequency energy

and, if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by

turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

 Reorient or relocate the receiving antenna.

 Increase the separation between the equipment and receiver.

 Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help.

Setup

Network Wiring

CAUTION: Provide sufficient power to the system. Insufficient power can lead to

unpredictable results or damage to the equipment. Please use the Crestron Power

Calculator (http://www.crestron.com/ dealer-tech_resources/power_calculator.asp)

help calculate how much power is needed for the system.

NOTE: When installing network wiring, refer to the latest revision of the wiring

diagram(s) appropriate to your specific system configuration, available from the

Downloads | Product Manuals | Wiring Diagrams section of the Crestron website

(www.crestron.com).

When calculating the wire gauge for a particular Cresnet run, the length of the run

and the power factor of each Cresnet unit to be connected must be taken into

consideration. If Cresnet units are to be daisy-chained on the run, the power factor of

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 9

QuickMedia Distribution System Crestron QM-MD4x2

each network unit to be daisy-chained must be added together to determine the

power factor of the entire chain. The length of the run in feet and the power factor of

the run should be used in the following resistance equation to calculate the value on

the right side of the equation.

Resistance Equation

R = Resistance (refer to table below).

L = Length of run (or chain) in feet.

PF = Power factor of entire run (or chain).

R <

L x PF

40,000

Where:

The required wire gauge should be chosen such that the resistance value is less than

the value calculated in the resistance equation. Refer to the table after this paragraph.

Wire Gauge Values

RESISTANCE (R) WIRE GAUGE

Doubled CAT5

8.7

Tripled CAT5

NOTE: All network wiring must consist of two twisted pairs. One twisted pair is

the +24V conductor and the GND conductor. The other twisted pair is the Y and Z

conductors.

NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully to

avoid nicking the conductors. Twist together the ends of the wires that share a pin on

the network connector, and tin the twisted connection. Apply solder only to the ends

of the twisted wires. Avoid tinning too far up the wires or the end becomes brittle.

Insert the tinned connection into the Cresnet connector and tighten the retaining

screw. Repeat the procedure for the other three conductors.

NOTE: For larger networks (i.e., greater than 28 network devices), it may become

necessary to add a Cresnet Hub/Repeater (CNXHUB) or Cresnet Network Poll

Accelerator (C2N-NPA8) to maintain signal quality throughout the network. Also,

for networks with lengthy cable runs, it may be necessary to add a Hub/Repeater

after only 20 devices.

QuickMedia Wiring

The Crestron QuickMedia cable (sold by Crestron under the name “Crescat-QM”)

contains one CAT5E cable and one Cresnet cable in siamese jackets. Installation of

any QM device is as simple as installing one set of QM wires from the output of one

device to the input of another. Installations are flexible, affordable, and fast.

10 • QuickMedia Distribution System: QM-MD4x2 Operations Guide - DOC. 6278

Crestron QM-MD4x2 QuickMedia Distribution System

CRESCAT-QM Cable

NOTE: Do not untwist the two wires in a single pair for more than 1/3-1/2” (0.84 –

1.27 cm) when making a connection. The twists are critical to canceling out

interference between the wires.

The QM transport mechanism (receiver) uses frequency compensation on each

twisted pair video input to maintain high resolutions (1600 x 1200) with CRESCAT-

QM cable (which contains both Cresnet and CAT5E wiring) and most good quality

CAT5E and CAT6 cables (where skew rating is ≤ 15 ns / 100 meters). The total

accumulated length of the cable determines the actual skew. For example, when

connecting the QM-WMC to a QM-MD4x2 and then to the QM-RMCRX, the total

accumulated skew must not exceed 15 ns and the total cable length cannot exceed

300 feet.

NOTE: The length of CAT5/5E/6 cable that can be used can vary. However, the

total skew must be ≤ 15 ns.

NOTE: Longer lengths of cable may experience eventual loss of bandwidth when

viewing higher resolution sources.

The following diagram illustrates how composite, S-video, and RGB video signals

are transmitted over the CAT5E wire.

Quick Media Video Signals on CAT5E

NOTE: When transmitting S-video or composite video, luminance uses the green

video pathway, chrominance uses the red video pathway, and composite uses the

blue video pathway.

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QuickMedia Distribution System Crestron QM-MD4x2

The pin assignments for Crescat-QM, CAT5, CAT5E, and CAT 6 wiring are based

on the EIA/TIA 568B RJ-45 Jack standard.

RJ-45 QuickMedia Connector

Pin 1

To determine which pin is number 1, hold the cable so that the end of the eight-pin

modular jack is facing you, with the clip down and the copper side up. When looking

down at the copper connections, pin 1 is on the far right. The following table lists the

pin assignments on the RJ-45 connector.

Pin and Pair Assignment

RJ-45

PIN #

CAT5E

PAIR #

WIRE

COLORS

(568B)

QM ASSIGNMENT

RGB AND AUDIO

QM ASSIGNMENT

COMPOSITE,

S-VIDEO AND AUDIO

1 2 WHITE/ORANGE - RGB RED - CHROMINANCE

2 2 ORANGE + RGB RED + CHROMINANCE

3 3 WHITE/GREEN - RGB GREEN - LUMINANCE

4 1 BLUE + AUDIO + AUDIO

5 1 WHITE/BLUE - AUDIO - AUDIO

6 3 GREEN + RGB GREEN + LUMINANCE

7 4 WHITE/BROWN - RGB BLUE - COMPOSITE

8 4 BROWN + RGB BLUE + COMPOSITE

NOTE: When using Crescat-QM wiring, a cable containing four wires is included

for making Cresnet connections.

Identity Code

All equipment and user interfaces within the network require a unique identity code

(Net ID). These codes are two-digit hexadecimal numbers from 03 to FE. The Net ID

of each unit must match an ID code specified in the SIMPL Windows program.

Refer to “Setting the Net ID in Device Settings” on page 19 for details of the SIMPL

Windows procedure.

Refer to the note on page 23 for a

definition of Viewport.

The Net ID of the MD4x2 has been factory set to 07. The Net IDs of multiple

MD4x2s in the same system must be unique. Net IDs are changed from a personal

computer (PC) via the Crestron Viewport.

NOTE: For detailed information on establishing communication between the PC and

control system, refer to “Communication Settings” on page 23. If communication

cannot be established, refer to the “Troubleshooting Communications” section in the

respective Operations Guide for the control system.

There are two different methods—Method A or Method B—for setting the Net ID:

Method A (Cresnet address-settable ID), described on the following page, applies to

devices in a Cresnet system with a 2-Series control system that require a single unit

be the only network device connected to the control system.

Method B (Touch Settable ID or TSID), which begins on the following page, applies

to all TSID-ready devices in a Cresnet system with 2-Series control system upgrade

file (CUZ) version 3.029 or later. TSID functionality makes it possible for the

12 • QuickMedia Distribution System: QM-MD4x2 Operations Guide - DOC. 6278

Crestron QM-MD4x2 QuickMedia Distribution System

control system to recognize a network device via its serial number, which is stored in

the device’s memory. This method does not require that any devices be disconnected

from the network; Net IDs may be set with the entire Cresnet system intact. This

method requires the use of the Crestron Viewport version 3.35 or later.

Use the appropriate method to set the Net ID.

Method A (Cresnet address-settable ID)

1. Ensure that the device requiring a Net ID change is the only unit connected

to the control system.

2. Open the Crestron Viewport.

3. From the Viewport menu, select Functions | Set Network ID. The software

checks the baud rate and then opens the "Set Network ID" window.

4. In the "Set Network ID" window, select the device requiring a Net ID

change from the Current Network Devices text window.

5. Select the new Net ID for the device from the Choose the new network ID

for the selected device (Hex): text box.

6. Click Set ID to initiate the change. This will display the "ID command has

been sent" window.

7. In the "Command Complete" window, click OK.

8. In the Current Network Devices text window, verify the new Net ID code.

9. In the "Set Network ID" window, click Close.

NOTE: The new Net ID code may also be verified by selecting Diagnostic | Report

Network Devices in the Viewport (alternately, select F4).

10. Repeat this procedure for each additional network device requiring a Net ID

change.

Method B (Touch Settable ID)

Before using this method, you should have a list of all current network devices and

their Net IDs, to avoid assigning duplicate IDs.

Set Net ID by TSID

These procedures are for TSID-enabled network devices during the initial

configuration of a Cresnet system or when such devices are being added/replaced.

1. Ensure that all network devices are connected to the control system.

2. Open the Crestron Viewport version 3.35 or later.

3. From the Viewport menu, select Functions | Assign Cresnet ID by Serial

Number. The “Set Net ID by TSID” window appears. The window is first

displayed with the data fields empty.

4. Click on the Search for Touch Settable Devices button. The system

searches the network and lists all TSID-enabled devices found. The list is

similar to the report produced by pressing F4 (Report Network Devices);

the first eight digits of each line constitute the TSID number (hexadecimal

form of the serial number).

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QuickMedia Distribution System Crestron QM-MD4x2

“Set Net ID by TSID” Window

5. Enter either the serial number or TSID number of the device that requires a

change. The list scrolls to and highlights the device listing. The listing

should show the device’s default Cresnet ID (a.k.a. Net ID).

6. Enter the Cresnet ID that the device should be set to and click OK. The

number you enter should appear on the list.

CAUTION: This function does not prevent you from setting duplicate IDs. Be sure

to check current assignments before entering the desired Cresnet ID number.

Serial Number to TSID Conversion

This utility is useful in a case where there are multiple devices of the same type on a

network, you need to locate a particular one, you know the TSID but not the serial

number, and your site installation list is based on device serial numbers. In this (or

the reverse) situation, do the following:

1. Open the Crestron Viewport.

2. From the Viewport menu, select Functions | Serial Number 

TSID Conversion Tool. The “Serial Number TSID Conversion

Tool” window is displayed.

“Serial Number to TSID Conversion Tool” Window

14 • QuickMedia Distribution System: QM-MD4x2 Operations Guide - DOC. 6278

Crestron QM-MD4x2 QuickMedia Distribution System

3. Enter the serial number or TSID number as instructed; press the

appropriate button to obtain the corresponding number.

NOTE: Enter serial numbers, including spaces, exactly as they appear on the unit

label. Alpha characters in serial numbers or TSID numbers may be entered in upper

or lower case.

Rack Mounting

WARNING: To prevent bodily injury when mounting or servicing this unit in a

rack, take special precautions to ensure that the system remains stable. The

following guidelines are provided to ensure your safety:

 When mounting this unit in a partially filled rack, load the rack from the

bottom to the top with the heaviest component at the bottom of the rack.

 If the rack is provided with stabilizing devices, install the stabilizers before

mounting or servicing the unit in the rack.

NOTE: If rack mounting is not required, rubber feet are provided for tabletop

mounting or stacking. Apply the feet near the corner edges on the underside of the

unit. Refer to “Stacking” on page 16 for details.

NOTE: Reliable earthing of rack-mounted equipment should be maintained.

Particular attention should be given to supply connections other than direct

connections to the branch circuit. (e.g., use of power strips).

Two “ears” are provided with the MD4x2 so that the unit can be rack mounted.

These ears must be installed prior to mounting. Complete the following procedure to

attach the ears to the unit. The only tool required is a #1 Phillips screwdriver.

1. There are screws (#4-40 x 0.3125" LG) that secure each side of the

MD4x2 top cover. Using a #1 Phillips screwdriver, remove the three

screws closest to the front panel from one side of the unit. Refer to the

diagram following step 3 for a detailed view.

2. Position a rack ear so that its mounting holes align with the holes

vacated by the screws in step 1.

3. Secure the ear to the unit with three screws from step 1, as shown in the

following diagram.

Ear Attachment for Rack Mounting

USE COVER SCREWS

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 15

QuickMedia Distribution System Crestron QM-MD4x2

4. Repeat procedure (steps 1 through 3) to attach the remaining ear to the

opposite side.

Stacking

Four "feet" are provided with the MD4x2 so that if the unit is not rack mounted, the

rubber feet can provide stability when the unit is placed on a flat surface or stacked.

These feet should be attached prior to the hookup procedure. Refer to the illustration

below for placement of the feet.

Feet Location (Bottom View of Unit)

ATTACH FEET

NEAR CORNERS

OF THE UNIT

Hardware Hookup

Refer to the following hookup diagram and, aside from attaching power last,

complete the connections in any order. Refer to “Network Wiring” on page 9 when

making network connections.

NOTE: To prevent overheating, do not operate this product in an area that exceeds

the environmental temperature range listed in the table of specifications.

Consideration must be given if installed in a closed or multi-unit rack assembly since

the operating ambient temperature of the rack environment may be greater than the

room ambient. Contact with thermal insulating materials should be avoided on all

sides of the unit.

NOTE: The maximum continuous current from equipment under any external load

conditions shall not exceed a current limit that is suitable for the minimum wire

gauge used in interconnecting cables. The ratings on the connecting unit's supply

input should be considered to prevent overloading the wiring.

Hardware Connections for the QM-MD4x2 (Back of the Unit is Shown)

QM INPUTS:

QUICKMEDIA PORT CARRIES AUDIO, VIDEO,

RGB, MICROPHONE, AND CRESNET SIGNALS

QM OUTPUTS:

QUICKMEDIA PORT CARRIES AUDIO, VIDEO,

RGB, MICROPHONE, AND CRESNET SIGNALS

CRESNET:

TO CONTROL SYSTEM AND

OTHER CRESNET DEVICES

POWER:

24 VDC TO

QM OUTPUTS 1 AND 2

POWER:

24 VDC TO

QM INPUTS 1 - 4

Z24 Y G Y24

OUT

YGZ24ZG

GZY

24 GZY

YZG

16 • QuickMedia Distribution System: QM-MD4x2 Operations Guide - DOC. 6278

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Crestron electronic QM-MD4X2 User manual

Brand: Crestron electronic

Model: QM-MD4X2

Type: User manual

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Marine Sanitation System QM-MD4X2

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Crestron electronic QM-MD4X2 User manual

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